import java.util.HashSet;
import java.util.Set;
+import net.sourceforge.phpdt.ui.text.PHPSourceViewerConfiguration;
import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-import net.sourceforge.phpeclipse.phpeditor.PHPSourceViewerConfiguration;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.text.source.SourceViewer;